January 18, 1879

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Features

American Industries--No. 2

By Hamilton S. Wicks

The Adulteration of Soft Soap

Patents in New South Wales

Sun Spots and Commercial Crises

Over-Density of Population in Cities

Boiler Feeders for Locomotives, Etc

How to Utilize Old Fruit Cans

Progress of the Swedish Arctic Expedition

The Trademarks Quandary

Senate Bill 300.--Section 2

Straub's Scientific Grain Mill

Easily Made Physical Apparatus

By Geo. M. Hopkins

The Columbia Bicycle

The Luray Cavern

By H. C. Hovey

The Clipper Injector

Duplex Steam Pumping Engines

The Chætodon

Early English Style of Piano at the Paris Exhibition

Spreading Diphtheria by Kisses

A New Method of Setting Boiler Tubes

The Gruey Gyroscope and the Gyroscopic Pendulum

To Inventors

Departments

Departments

Recent Inventions

Correspondence

Business and Personal

New Books and Publications

Notes and Queries

Index of Inventions

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